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Removing Oil Pan On 4.0L With 4Wd


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It looks like I need to remove my oil pan. I have seen several posts implying there may be a clearance issue in getting the pan off if the truck still has original suspension height. One post had mentioned a method to do it, but now I can't find the post.

 

I know to raise the truck and support it by the frame and let the axle hang down, what else do I have to do?

 

Thanks for any guidance.

 

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I may be wrong, but I'm thinking you would need to lower the pan enough to get to the oil pump bolts. Once the pump is off, the sump is no longer an issue. I personaly have not tried this approach, but I believe it is the method you were refering to.

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Just did mine the other day. Took me 8 hours haha. I did not take the axle all the way out just undid the lower control arms and dropped it all the way down. Then unbolt the bump and wiggle the pan out.

 

2 hours to get the axle out (not really working to quick) and in

30 min to get the bolts out

2 hours to get the pan off (had to work a razer blade all the way around)

2 hours toclean the mating surfaces

rest to install the pan and all.

 

Note: make sure pan is straight and that the bolt holes are flush. Rtv on the four corners. And its a great time to do the RMS.

 

Any other questions let me know....

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great time to measure the slop in your timing chain also.

 

Just to show my ignorance. When you drop the oil pan, is the timing chain exposed? I would have thought I'd have to remove the timing cover to see that.

 

How you check the slop in the timing chain. Do you just check to see if it's loose on the lower gear?

 

Thanks

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Why remove the front axle? Put jack stands under the frame behind the lower control arm brackets, remove tires, put the lug nuts back on over the rotors, and let the axle droop down to rest of the rotors. That will give 5+ inches of extra room. If the steering linkage gets in the way some from too much suspension drop then jack the axle up slightly.

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I may be wrong, but I'm thinking you would need to lower the pan enough to get to the oil pump bolts. Once the pump is off, the sump is no longer an issue. I personaly have not tried this approach, but I believe it is the method you were refering to.

 

  I've done this 4 or 5 times.  Put a set of jack stands under the LCA mounts, let the suspension hang free, drop the pan, use a combination wrench on the oil pump bolts, and drop the pump into the pan.  You can change the RMS this way in about 3 hrs if it doesn't require too much cleaning.

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